mpich not installed

[meysamj]

Hi
I wanna install mpich on my pc. so I download mpich -1.2.7p1. tar.gz
first I unzip this file with tar -zxvf mpich -1.2.7p1. tar.gz command
next I ./configure and make on this directory
both of them done. next I type make install in the command. this error appeared

if [ "" = "" ] ; then \
./bin/mpiinstall ; \
else \
./bin/mpiinstall -prefix= ; \
fi
cp: `/home/meysam/Desktop/mpich-1.2.7p1/bin/tarch' and `/home/meysam/Desktop/mpich-1.2.7p1/bin/tarch' are the same file
**Error copying file /home/meysam/Desktop/mpich-1.2.7p1/bin/tarch to /home/meysam/Desktop/mpich-1.2.7p1/bin/tarch **
make: *** [install] Error 1

so can anybody tell me what must I doing?

Thanks
Mj

[rcgreen]

Do make install as root.